CN108360368A - A kind of multistage antidetonation bridging apparatus - Google Patents
A kind of multistage antidetonation bridging apparatus Download PDFInfo
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- CN108360368A CN108360368A CN201810137598.7A CN201810137598A CN108360368A CN 108360368 A CN108360368 A CN 108360368A CN 201810137598 A CN201810137598 A CN 201810137598A CN 108360368 A CN108360368 A CN 108360368A
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The present invention relates to a kind of multistage antidetonation bridging apparatus, the problem of effective solution existing highway bridge antidetonation is all the antishock device designed after bridge in geological process；The technical solution of solution includes antishock device, the antishock device includes physics earthquake-resistant bin, seismic grade Ⅰ storehouse and two level earthquake-resistant bin, physics anti-seismic material is filled in physics earthquake-resistant bin, multiple circumferentially uniformly distributed the first antishock devices are provided in seismic grade Ⅰ storehouse, second belt pulley is coaxially connected with third gear, it is engaged with third rack above third gear, third rack contacts the ring baffle for being placed in front end, structure of the invention is ingenious, the amplitude up and down of generation can be sent out according to P wave to be changed into lateral active force, to carry out ring baffle the buffering energy dissipating of counter force by horizontal force, and according to the effect for extending time and spring strength when seismic wave transmission is weakened in entire antishock device.
Description
Technical field
The present invention relates to bridge earthquake resistance technical field, especially a kind of multistage antidetonation bridging apparatus.
Background technology
The concept of bridge earthquake resistance is the technical measures to avoid bridge from being taken by the destruction of earthquake, and earthquake is to bridge
It destroys mainly caused by ground failure and bridge Vibration damage.Wherein destruction of surface has ground cleave, landslide, landslide, bank slope
Phenomena such as sliding and sand liquefaction.Ground cleave can cause the shortening, elongation or pier of bridge span to sink.In steep mountain area or grittiness
At soil and bury riverbank, landslide caused by violent earthquake, bank slope sliding and mountain stone tumble, and can make bridge collapse.In shallow-layer
The loose sand of saturation at, geological process easily causes sand liquefaction, causes bridge to sink suddenly or uneven subsidence, or even make bridge
Beam is toppled over.At slope side soil bank or ancient stream channel, earthquake then often causes bank slope sliding, cracking and phenomena such as avalanche, causes bridge
It destroys.Bridge Vibration damage is to cause the damage and destruction of bridge member since earthquake makes bridge generate horizontal and vertical vibration,
Even bridge is made to decay.
In the measure of numerous bridge earthquake resistances, a kind of the reason of being damaged bridge is the ground due to caused by earthquake
Shake be also known as earthquake, vibrate, be to be shaken caused by during earth's crust quick release of energy, the one kind that during which will produce seismic wave is existing
As.Mutual extrusion and collision between plate and plate on the earth causes edge of plate and plate interiors to generate the changing of the relative positions and rupture, is to draw
The main reason for playing earthquake.
The seismic wave that earthquake is propagated in earth interior is known as bulk wave, is divided into longitudinal wave and shear wave, the direction of vibration and wave of longitudinal wave
The direction of propagation it is consistent, spread speed is fast, and feel porpoising when reaching people from ground, and object moves up and down.The direction of vibration of shear wave with
The direction of propagation of wave is vertical, and spread speed is slower than longitudinal wave, and feel to rock when reaching people from ground, and object can swing back and forth.
Bridge can be damaged by the bulk wave caused by earthquake, so in Bridge Design, generally can all be designed to have
The bridge of standby certain shock strength is more also designed with antishock device other than the antidetonation of bridge self structure on bridge,
This antishock device is antishock device designed after acting on bridge after the earthquake.
In addition to this, the present invention provides a kind of on the architecture basics of existing highway bridge, a kind of antishock device is designed, with as possible
To reduce seismic wave caused by earthquake to earthquake damage caused by bridge.
Invention content
For the above situation, to overcome the defect of the prior art, the present invention to provide a kind of multistage antidetonation bridging apparatus, effectively
Solve the problems, such as existing highway bridge antidetonation all and be the antishock device designed after bridge in geological process.
The present invention includes bridge pier, and the lower end of bridge pier is embedded in underground, which is characterized in that described to be placed in underground bridge
The antishock device of annular is fixed on the outside of beam bridge pier, antishock device is surrounded bridge pier, and antishock device is placed in below ground；
The antishock device includes circular casing, is cavity and underpart opening inside circular casing, multiple rings are equipped in circular casing
Circular casing is divided into physics earthquake-resistant bin, seismic grade Ⅰ storehouse and two level earthquake-resistant bin, physics antidetonation by shape baffle, ring baffle from outside to inside
Physics anti-seismic material is filled in storehouse, multiple ring baffles are equipped with multiple circumferentially uniformly distributed guide rods, and multiple guide rods pass through
Wear the top and bottom of multiple ring baffles so that ring baffle can move on the guide bar, physics earthquake-resistant bin, seismic grade Ⅰ
Storehouse is equipped with the first compressed spring being arranged on the guide bar in two level earthquake-resistant bin, and the both ends of the first compressed spring are connected with can be
The connection ring slided on guide rod has gap between connection ring and adjacent annular baffle；
Multiple circumferentially uniformly distributed the first antishock devices are provided in seismic grade Ⅰ storehouse, the first antishock device includes being fixed on level-one
First gear on earthquake-resistant bin annular baffle, first gear are engaged with the first rack that can move up and down, the first rack
Lower end contacts ground or is placed in below ground, and first gear is coaxially connected with second gear, and second gear is more than first gear, the
Two gears are engaged with the second rack that can move up and down, the upper end of the second rack be engaged be placed in it is unidirectional above second gear
Fly gear；
The unidirectionally winged gear includes the external gear engaged with the second rack, and external gear medial surface is equipped with internal tooth, pacifies in external gear
Equipped with rotatable rotating wheel, rotating wheel is equipped with multiple first pawls, and the first pawl and internal tooth coordinate, and the is equipped in rotating wheel
One shaft, first rotating shaft are connected with the second shaft outside, rotating bar, the both ends symmetrical one of rotating bar are arranged in the second shaft
Body is connected with the Rotational Cylindrical of direction outward, and movable sleeve is equipped with the first belt pulley in the second shaft, and the side of the first belt pulley is opened
If there are two radian slot, radian slot and two Rotational Cylindricals coordinate, and Rotational Cylindrical can rotate in radian slot, the first belt pulley
Two symmetrically arranged fixed columns of outer end face integrally connected, second spring, the first skin are connected between fixed column and Rotational Cylindrical
Top on belt wheel is equipped with the second belt pulley and third belt pulley for being separately fixed at ring baffle both sides, the first belt pulley, the
Percutaneous band connection between two belt pulleys, third belt pulley；
Second belt pulley is coaxially connected with third gear, and third rack is engaged with above third gear, and the contact of third rack is placed in
The ring baffle of front end.
Preferably, level-one physics earthquake-resistant bin is divided into through two ring baffles, two level physics resists in the physics earthquake-resistant bin
Shake storehouse, three-level physics earthquake-resistant bin, level-one physics earthquake-resistant bin is interior to be filled with carbon fibre material, is filled with and adds in two level physics earthquake-resistant bin
Gas concrete, three-level physics earthquake-resistant bin is interior to be filled with elastic rubber.
Preferably, the lower end of first rack is connected with third spring, and clump weight is connected with below third spring.
Preferably, the side wall of the third rack is equipped with side tooth, and side tooth engagement has the 4th gear, the 4th gear it is another
Side is engaged with the 5th gear, and the 4th gear and the 5th gear are coaxially connected with the first swing rod and the second swing rod, the first swing rod respectively
It is connected with the 4th spring with the end of the second swing rod.
Preferably, it is combined with the second antishock device being placed in two level earthquake-resistant bin on the outside of the third belt pulley, second
Antishock device includes the holder being fixed on two level earthquake-resistant bin annular baffle, and buffer disc, buffer disc are rotatably connected in holder
Quadrangle offers notch, and telescoping cylinder is mounted at notch, and the 5th spring is mounted in telescoping cylinder, and the 5th spring is connected with
Stretch rod, the stretch rod end for being placed in left end are connected with U-shaped frame, and U-shaped frame is rotatably connected to the second pawl, symmetrical with the stretch rod
The stretch rod of position connects ring baffle, other two stretch rods are separately connected the stretch rod of another the second antishock device, the
The both ends of three belt pulleys are equipped with external tooth, and external tooth is integrally attached on third belt pulley, the external tooth of third belt pulley and the second pawl
Cooperation.
Structure of the invention is ingenious, can be changed into lateral active force according to the amplitude up and down that P wave hair generates, according to
To carry out ring baffle the buffering energy dissipating of counter force by horizontal force, and according to the extension time in entire antishock device
Effect with spring is so that strength when seismic wave transmits is weakened.
Description of the drawings
Fig. 1 is top view illustration of the present invention.
Fig. 2 is circular casing part isometric structural schematic diagram of the present invention.
Fig. 3 is circular casing partial side elevation view schematic diagram of the present invention.
Fig. 4 is the first antishock device stereogram schematic diagram of the invention.
Fig. 5 is the first antishock device front view schematic diagram of the invention.
Fig. 6 is the first belt pulley of the present invention, the second belt pulley, third pulley drive schematic diagram.
Fig. 7 is the present invention unidirectionally winged gear and the first belt pulley scheme of installation.
Fig. 8 is the present invention unidirectionally winged gear and the first belt pulley explosive decomposition schematic diagram.
Fig. 9 is the present invention unidirectionally winged gear front view schematic diagram.
Figure 10 is the 4th gear of the present invention, the 5th gear engagement stereoscopic schematic diagram.
Figure 11 is the second antishock device front view schematic diagram of the invention.
Figure 12 is the second antishock device stereogram schematic diagram of the invention.
Figure 13 is buffer disc connection structure stereoscopic schematic diagram of the present invention.
Specific implementation mode
For the present invention aforementioned and other technology contents, feature and effect, in following cooperation with reference to figures 1 through Figure 13 pairs
In the detailed description of embodiment, can clearly it present.The structure content being previously mentioned in following embodiment is attached with specification
Figure is reference.
Each exemplary embodiment of the present invention is described below with reference to accompanying drawings.
The present invention is a kind of multistage antidetonation bridging apparatus, and traditional bridge earthquake resistance device is all after bridge is subjected to effect
In order to prevent bridge collapse, inclination, sliding and the antishock device made, the present invention are done into one on the basis of the existing highway bridge
The antidetonation of step, it is therefore an objective to reduce or weaken as possible damage of the seismic wave to bridge caused by earthquake.
Embodiment one, antishock device of the invention include multistage antidetonation, can gradually play the effect of antidetonation, many bridges
It is owned by bridge pier 1, bridge pier 1 has cylindrical, the rectangular or other shapes having, which is in ring
Shape wraps bridge pier 1, if bridge pier 1 is not cylindric, in the antishock device 2 and bridge of this annular
The armored concrete filling of gap material same as bridge pier between bridge pier 1 pours.Bridge pier 1 is partially disposed in
More than ground, it is partially disposed in below ground, and the antishock device 2 of the present invention is arranged on the outer of the bridge pier 1 of below ground
Side, antishock device 2 of the invention are identical as the depth of 1 below ground of bridge pier.
The antishock device 2 includes circular casing 3, and the centre of circular casing 3 is bridge pier 1,3 side wall of circular casing and upper end seal
It closes, and internal is cavity, lower ending opening, 3 are equipped with ring baffle 4 in circular casing, and ring baffle 4 has multiple, and circular casing 3 is divided
For a plurality of cavities, we term it physics earthquake-resistant bin 5, seismic grade Ⅰ storehouse 6, two level earthquake-resistant bins 7 from outside to inside for a plurality of cavities, in object
It is provided with physics anti-seismic material in reason earthquake-resistant bin 5, the guide rod 8 that can run through ring baffle 4 is equipped on ring baffle 4, is led
Have to bar 8 multiple, is distributed in the top and bottom of ring baffle 4, it is therefore an objective to ring baffle 4 be allow to be carried out on guide rod 8
Sliding, is also arranged with the first compressed spring 9 on the guide rod 8, and the both ends of the first compressed spring 9 are connected with connection ring 10, even
It connects ring 10 to be movably set on guide rod 8, can also be slided, ring baffle 4 can be press-connected ring 10 and be compressed to first
Spring 9 is squeezed or is stretched, and when 10 initial position of connection ring does not contact with ring baffle 4, and preferably there are gaps 11 so that ring
4 original position of shape baffle can be with small-scale free double swerve when moving.
Seismic grade Ⅰ storehouse 6 is equipped with the first antishock device 12, which has multiple, is circumferentially distributed on level-one
In earthquake-resistant bin 6, when 6 depth of seismic grade Ⅰ storehouse is higher, the first antishock device 12 can also Multi-layers distributing, the first antishock device 12
Including the first gear 13 being fixed in seismic grade Ⅰ storehouse 6, first gear 13 is fixed on 4 wall of ring baffle in the storehouse, the
One gear 13 is fixed, and can only realize that rotation, 13 lower section of first gear are engaged with the first rack 14, the first rack 14 is fixed on annular
On baffle 4, the first rack 14 may be implemented to move up and down, and specific movement is to be equipped with to be fixed on annular in the lower section of the first rack 14
Limit sliding rail on baffle 4, the first rack 14 can slide on limit sliding rail, and the bottom end of the first rack 14 is at least contiguously
Face, the ground which says is the ground for 2 lower section of antishock device for being embedded in underground, because the device is embedded in below ground,
So the ground is not the ground of initial top, is the ground after being embedded in ground, slot there are one digging is equivalent to, in slot
Ground, the first rack 14 can also be embedded in ground in the following, why the first rack 14 is embedded in below ground, be because working as earthquake
When wave is transmitted through, what is be transmitted through first is longitudinal wave, and longitudinal wave can generate the device vibrations of upper and lower directions frequency, which make
First rack 14 starts amplitude up and down, and inevitably ring baffle 4 can follow amplitude up and down, if it is shake above and below synchronizing
It is dynamic, influence whether the device, therefore, it is necessary to by the frequency shift of the first rack 14 and ring baffle 4 so that is not always maintained at phase
The vibrations of same frequency.
First gear 13 is coaxially also associated with second gear 15, and second gear 15 is also integrally fixed on ring baffle 4, can be with
Realize that rotation, the diameter of second gear 15 are more than the diameter of first gear 13, in order to increase stroke, second gear 15 is nibbled
Conjunction has the second rack 16, the second rack 16 to can move up and down as the first rack 14, the first rack 14 and the second rack 16
Parallel arranged, and the upper end of the second rack 16 has also meshed with and has been placed in unidirectionally winged gear 17, the effect of unidirectional winged gear 17 is can be with
Realization can only rotate around same direction, and realize idle running when turned reversely, and concrete structure is, the unidirectional gear 17 that flies includes and the
The external gear 18 of two gears 15 engagement is equipped with internal tooth 19 in the medial surface of external gear 18, and rotation is also equipped in external gear 18
Wheel 20 is set in the outside of rotating wheel 20 there are two the first opposite pawl 21, and the first pawl 21 can coordinate in internal tooth 19,
It is equipped with the first rotating shaft 22 that rotating wheel 20 can be followed to rotate in rotating wheel 20, there is pin company between first rotating shaft 22 and rotating wheel 20
It connects, 22 outside of first rotating shaft, which extends, is connected with the second shaft 23, and being arranged in the second shaft 23 can turn with what is rotated therewith
The both ends of lever 24, rotating bar 24 are connected with Rotational Cylindrical 25, and the first belt pulley 26 is arranged in the outer end of the second shaft 23,
First belt pulley 26 is actively set in the second shaft 23, and the activity at this refers to that the first belt pulley 26 does not follow the second shaft 23 same
Step rotates, and is opened on the side wall on the first belt pulley 26 there are two radian slot 27, two radian slots 27 symmetrically, turn
Dynamic column 25 is placed in always in radian slot 27, and Rotational Cylindrical 25 is extended to from the side of radian slot 27 after radian slot 27
The other side of radian slot 27 is further fixed on the Rotational Cylindrical being placed on the first belt pulley 26 in the centre of two radian slots 27
25, Rotational Cylindrical 25 forms the Rotational Cylindrical 25 on one group, each group with adjacent fixed column 28 and connects between adjacent fixed column 28
It is connected to second spring 29, or is respectively connected between Rotational Cylindrical 25, fixed column 28, Rotational Cylindrical 25, fixed column 28 4
Two springs 29, totally four second springs 29 form an annular.
The other side of second belt pulley 30 is coaxially connected with third gear 33, and being engaged in the top of third gear 33 can be with
Mobile third rack 34, the fixation of third rack 34 are also by the limit sliding rail on ring baffle 4 come fixed, third
The front end of rack 34 can touch the ring baffle 4 of front end, for touching ring baffle 4.
Embodiment two is divided into level-one object in physics earthquake-resistant bin 5 on the basis of embodiment one through two ring baffles 4
Earthquake-resistant bin 35, two level physics earthquake-resistant bin 36, three-level physics earthquake-resistant bin 37 are managed, it is more in the ring baffle 4 and embodiment one at this
4 title of a ring baffle is consistent, is because the ring baffle 4 in embodiment one has multiple, and the ring baffle 4 at this actually
Be it is multiple in one, be filled with carbon fibre material in level-one physics earthquake-resistant bin 35, carbon fiber is mainly and resin, metal, pottery
The matrixes such as porcelain are compound, and structural material, carbon-fibre reinforced epoxy resin composite material is made, and the synthesis such as specific strength, specific modulus refers to
It is highest to be marked in existing structure material, requires the stringent field, carbon fibre composite to be all in density, rigidity, weight etc.
Quite advantageous, in terms of antidetonation, carbon fiber composite material reinforced concrete structure mainly utilizes high intensity, the height of fiber tension
Elasticity modulus, Large strain performance and utilization modified epoxy class cementing material make carbon fiber be generated with concrete structure good
Caking property, reinforcement and strengthening original structure tension longitudinal reinforcement and cut, the deficiency of antitorque stirrup, to improve structure bending resistance, anti-
It cuts, Torsion bearing capacity, air entrained concrete is filled in two level physics earthquake-resistant bin 36, air entrained concrete is with siliceous material（Sand, powder
Coal ash and containing silicon tailings etc.）And calcareous material（Lime, cement）For main material, foaming agent is added（Aluminium powder）, by dispensing, stir
Mix, pour into a mould, precuring, cutting, steam pressure, the technical process support such as maintenance light porous silicate product, because it contains after getting angry
There are a large amount of uniform and tiny stomatas, therefore named air entrained concrete（AAC）.Air entrained concrete is a kind of excellent novel building material
Material, has the following advantages, light-weight, thermal and insulating performance is good, intensity is high, anti-seismic performance is good, processing performance is good, with certain
Heat-resisting quantity, sound insulation value are good, are conducive to mechanized construction, are adaptable.The flexible rubber of filling in three-level physics earthquake-resistant bin 37
Glue, rubber are also a kind of good anti-seismic material, and building center portion uses lamination rubber, when the earthquake that degree of splitting is 6 occurs
When, the stress of building can be reduced to 1/2.Rubber can protect timber not make moist, and can also play the role of buffering in earthquake.
Embodiment three, on the basis of embodiment one, if the first rack 14 contact ground is not interposing at below ground, the
The lower end of one rack 14 is connected with third spring 38, clump weight 39 is connected in the lower end of third spring 38, because of the longitudinal wave of earthquake
Above and below to the device when amplitude, to the first rack 14 and ring baffle 4 to generating vibration, if amplitude is identical, first
Rack 14 and ring baffle 4 move synchronously, and the first rack 14 there will not be the movement of displacement, but the bulk wave of actually upper earthquake is not
The movement of rule, after vibration several times, the first rack 14 and ring baffle 4 will not necessarily resynchronize movement, and in order to more protect
It demonstrate,proves the first rack 14 and ring baffle 4 is asynchronous, meanwhile, it, can be normal after ensureing the vibration up of the first rack 14
Next time, increased third spring 38 and clump weight 39, after can making the movement up of the first rack 14, due to dead weight and counterweight
The reason of block 39, can move, simultaneously because third spring 38 is but also the first rack 14 and ring baffle 4 no longer keep phase
Same frequency will not be always maintained at and move synchronously, then the movement that the first rack 14 will be subjected to displacement.
Example IV, on the basis of embodiment one, third rack 34 follows the third gear 33 of engagement that can control shifting
Dynamic, there is the limit sliding rail being fixed on ring baffle 4 in the side of being fixed thereon of third rack 34, and third rack 34 is in addition to lower section
Outside tooth, it is additionally provided with tooth on the side wall of third rack 34, which is referred to as side tooth 40 by we, and side tooth 40 is engaged with the 4th gear
41, the 4th gear 41 is engaged with the 5th gear 42, and the 4th gear 41 and the 5th gear 42 are all fixed on ring baffle 4 through fixed link
On, the 4th gear 41 and the 5th gear 41 are also coaxially connected with 43 and second swing rod 44 of rotatable first swing rod respectively, and first
End the 4th spring 45 connection of swing rod 43 and the second swing rod 44.
Embodiment five also coordinates in the outside of third belt pulley 31 there are one the second antidetonation on the basis of embodiment one
Device 46, the first antishock device 12 have multiple, and the second antishock device 46 also has multiple, and the second antishock device 46 is placed in two level antidetonation
In storehouse 7, the second antishock device 46 includes a holder 47 for being fixed on two level earthquake-resistant bin 7, and holder 47 is fixed on two level earthquake-resistant bin 7
On interior ring baffle 4, buffer disc 48 is rotatably connected in holder 47, the buffer disc 48 is square, then in four edges
Arc block in upper removal is oriented, inside notch 49 is offered in the four corners of the buffer disc 48, is equipped at notch 49
Telescoping cylinder 50, which can be rotatably connected in notch 49, can also be installed in notch 49, in telescoping cylinder 49
5th spring 51 is installed, the 5th spring 51 is externally connected with stretch rod 52, and the stretching of stretch rod 52 can make 49 small range of buffer disc
Carry out back rotation, stretch rod 52 in total there are four, being placed in the end connection of a stretch rod 52 of left end, there are one U-shaped frame 53, U-shapeds
Frame 53 is rotatably connected to the second pawl 54, and has another stretch rod 52 at 52 symmetric position of stretch rod, and the stretch rod 52 is solid
It is scheduled on ring baffle 4, other two stretch rod 52 is respectively placed in top and bottom, and another above and below being separately connected
The stretch rod 52 of a second antishock device 46 forms it into a set of continuous device.It is equipped with one at the both ends of third belt pulley 31
The external tooth 55 of body connection, the external tooth 55 of the third belt pulley 31 are combined with the second pawl 54, and the second pawl 54 is stuck in external tooth 55
Lower section so that when third belt pulley 31 rotates counterclockwise, the second pawl 54 will not impact it, and third belt pulley 31 is not yet
Second pawl 54 can be impacted, and the second pawl 54 can be pushed when third belt pulley 31 rotates clockwise.
The propagation of specifically used process, earthquake is divided into shear wave and longitudinal wave, and the spread speed of longitudinal wave is very fast, so earthquake is sent out
In life, jolting for the amplitude up and down felt first, is that the present apparatus is enclosed in bridge pier 1 to be placed in for the present invention
The periphery of under ground portion, then it is carried out cast it is fixed bury etc., the lower end of the first rack 14 is embedded in underground or through the
Three springs 38 connect clump weight 39, it is therefore an objective to so that the first rack 14 is generated shaking and may be implemented to move up and down, and ensure the first tooth
Item 14 can be with return after moving upwards.
When after the earthquake, P wave transmission is fast, longitudinal wave can through multiple physics vibration-absorptive materials in physics damping storehouse 5 into
Row damping, and the first rack 14 for being placed in level-one damping storehouse 6 can be influenced by longitudinal wave, carry out vertical tremor, ring baffle 4 is not
Synchronous vibrating, mistake already explained above can be kept with the first rack 14 always, so the first rack 14, which moves up and down, drives first
Gear 13 rotates, and first gear 13 coaxially drives second gear 15 to rotate, and second gear 15 is more than first gear 13, second gear
15 are engaged with the second rack 16, and therefore, the up and down motion of 14 thin tail sheep of the first rack can make the upper of 16 big displacement of the second rack
Lower movement, the second rack 16 engage unidirectionally winged gear 17 and rotate.
When second rack 16 moves downward, external gear 18 is driven to rotate clockwise, the internal tooth 19 of external gear 18 and the first spine
21 same direction of pawl, external gear 18 can normally rotate clockwise under the first pawl 21 at this time, and rotating wheel 20 does not rotate, phase
It is dallying when in external gear 18, first rotating shaft 22, the second shaft 23, the first belt pulley 31 will not all rotate.
When second rack 16 moves upwards, external gear 18 is driven to rotate counterclockwise, the internal tooth 19 of external gear 18 pushes first
Pawl 21 rotates counterclockwise, and the rotating wheel 20 of 21 integrally connected of the first pawl rotates counterclockwise, and rotating wheel 20 drives first rotating shaft
22 rotate counterclockwise, and 22 the second shaft of integrally connected 23 of first rotating shaft rotates counterclockwise, and the second shaft 23 drives rotating bar 24 inverse
Hour hands rotate, the Rotational Cylindrical 25 of rotating bar 24, the rotation in two radian slots 27, and when initial, the first belt pulley 26 is activity
In the second shaft 23, that is to say, that when the second shaft 23 rotates, the second shaft 23 can not drive the first belt pulley 26
Rotation, and second spring 29 is pulled in the present invention, when Rotational Cylindrical 25 rotates, second spring 29 pulls fixed column 28, fixed column 28
So that the first belt pulley 31 starts to rotate counterclockwise, the first belt pulley 31 itself have certain gravity or the first belt pulley 31 with
There is certain frictional force between second shaft 23, when the second shaft 23 rotates, the rotation in the radian slot 27 of Rotational Cylindrical 25, when turning
When moving radian 27 end of slot, the rotation of the first belt pulley 31 can be push, and when the second rack 16 moves downward, the first skin
Belt wheel 31 will not have rotated, then being stretched between Rotational Cylindrical 25 and fixed column 28 at this time, when Rotational Cylindrical 25 stops
It waits, second spring 29 pulls fixed column 28 so that the first belt pulley 31 is rotated further, and ensures that the first belt pulley 31 is to hold as possible
Continuous rotation, this can rub according to the coefficient of dilatation of second spring 29, installation of first belt pulley 31 in the second shaft 23
Wiping degree adjusts.
First belt pulley 31 drives the second belt pulley 30, third belt pulley 31 to rotate through belt 32, and the second belt pulley 30 is same
Axis drives third gear 33 to rotate, and third gear 33 drives third rack 34 to move downward, and resists the ring baffle 4 in front, with
It is transmitted through the shear wave come for reducing earthquake, reduction shear wave mentioned here is meant when shear wave is transmitted through next, can be to annular
Baffle 4 has active force to the right, if it is active force to the left, then it will not be applied to bridge pier, and active force to the right
When being applied to ring baffle 4, ring baffle 4 can be pushed to move right, and third rack 34 pushes ring baffle 4 to transport to the left at this time
It is dynamic, thus indirectly to shear wave into row buffering energy dissipating, because the frequencies of propagation of earthquake is irregular, when shear wave transmission frequency becomes smaller
When, third rack 34 can push ring baffle 4 to move downward.
And the shear wave of earthquake also can the first buffering energy dissipating through physics earthquake-resistant bin 5, when larger can active force in ring baffle 4,
Ring baffle 4 is pushed to move right, when shear wave pushes to the right ring baffle 4, in order to buffer energy dissipating to shear wave, ring baffle 4 pushes away
Dynamic third rack 34 moves right, and third rack 34 engages third gear 33 and rotates clockwise, and third gear 33 coaxially drives the
Two belt pulleys 30 rotate clockwise, and belt 32 drives the first belt pulley 26 to rotate clockwise, and the first belt pulley 26 pushes Rotational Cylindrical
25 rotate clockwise, and Rotational Cylindrical 25 drives first rotating shaft 22 to rotate clockwise, and first rotating shaft 22 drives rotating wheel 20 to turn clockwise
Dynamic, rotating wheel 20 drives external gear 18 to rotate clockwise, and external gear 18 drives the second rack 16 to move downward, 16 band of the second rack
Dynamic second gear 15 rotates clockwise, and second gear 15 coaxially drives first gear 13 to rotate clockwise, and second gear 15 drives
First rack 14 moves downward.
In addition to this, the second belt pulley 30 drives third belt pulley 31 to rotate clockwise, and third belt pulley 31 pushes at this time
Second pawl 54 moves right, and third belt pulley 31 can only slightly push to the right the second pawl 54, because the second pawl 54 is living
Dynamic to be stuck on the external tooth 55 of third belt pulley 31, third belt pulley 31 is rotation, once the second pawl 54 is detached from that time
External tooth 55, the second pawl 54 will come back to original position, and the second pawl 54 drives the compression of stretch rod 52 the 5th through U-shaped frame 53
Spring 51, and when third belt pulley 31 turns over, the second pawl 54 since the effect of the 5th spring 51 returns to original place again, and
Buffer disc 48 rotates down some when third belt pulley 31 can be followed to rotate and then then returns to original position, adds the drawing of the other end
Boom 52 is fixed on ring baffle 4, other two stretch rod 52 connects the stretch rod 52 of the second antishock device of upper and lower side 46, because
This, buffer disc 48 will not rotate a circle, only can it is small-scale come back rotation, eventually cause buffer disc 48 and ceaselessly shaking, from
And buffering energy dissipating is carried out to earthquake.
In addition, when third belt pulley 31 rotates counterclockwise, the external tooth 55 on third belt pulley 31 will not push the second spine
Pawl 54, at this time buffer disc 48 do not acted on.
In addition, when third rack 34 pushes third gear 33 to move right, in order to it into row buffering energy dissipating, in third
Side tooth 40 is additionally provided on the side wall of rack 34, side tooth 40 is engaged with the 4th gear 41, and the 4th gear 41 rotates clockwise at this time, the
Four or five gears 42 of four gears 41 engagement rotate counterclockwise, the first oscillating rod 43 on the 4th gear 41 and the 5th gear 42 and the
Two oscillating rods 44 rotate round about simultaneously, and the 4th spring 45 on the first swing rod 43 and the second swing rod 44 is stretched, to
To active force caused by earthquake into row buffering energy dissipating.
Ring baffle 4 is whether moved to the left or moves right and can all be carried out to the first compressed spring 9 along guide rod 8
Compression, also further into row buffering energy dissipating.
Structure of the invention is ingenious, can be changed into lateral active force according to the amplitude up and down that P wave hair generates, according to
To carry out ring baffle the buffering energy dissipating of counter force by horizontal force, and according to the extension time in entire antishock device
Effect with spring is so that strength when seismic wave transmits is weakened.
Claims (5)
1. a kind of multistage antidetonation bridging apparatus, including bridge pier（1）, bridge pier（1）Lower end be embedded in underground, feature
It is, it is described to be placed in underground bridge pier（1）Outside is fixed with the antishock device of annular（2）, antishock device（2）By bridge pier
（1）It is surrounded, antishock device（2）It is placed in below ground；
The antishock device（2）Including circular casing（3）, circular casing（3）Inside is cavity and underpart opening, in circular casing（3）
It is interior to be equipped with multiple ring baffles（4）, ring baffle（4）By circular casing（3）It is divided into physics earthquake-resistant bin from outside to inside（5）, level-one it is anti-
Shake storehouse（6）With two level earthquake-resistant bin（7）, physics earthquake-resistant bin（5）It is interior to be filled with physics anti-seismic material, multiple ring baffles（4）On set
There are multiple circumferentially uniformly distributed guide rods（8）, multiple guide rods（8）Through multiple ring baffles（4）Top and bottom so that
Ring baffle（4）It can be in guide rod（8）Upper movement, physics earthquake-resistant bin（5）, seismic grade Ⅰ storehouse（6）, two level earthquake-resistant bin（7）It is interior
Equipped with being set in guide rod（8）On the first compressed spring（9）, the first compressed spring（9）Be connected with can be in guide rod at both ends
（8）The connection ring of upper sliding（10）, connection ring（10）With adjacent annular baffle（4）Between have gap（11）；
Seismic grade Ⅰ storehouse（6）Inside it is provided with multiple circumferentially uniformly distributed the first antishock devices（12）, the first antishock device（12）Packet
It includes and is fixed on seismic grade Ⅰ storehouse（6）Annular baffle（4）On first gear（13）, first gear（13）Being engaged with can be upper and lower
The first mobile rack（14）, the first rack（14）Lower end contact ground or be placed in below ground, first gear（13）Coaxially
It is connected with second gear（15）, second gear（15）More than first gear（13）, second gear（15）Be engaged with can on move down
The second dynamic rack（16）, the second rack（16）Upper end be engaged with and be placed in second gear（15）The unidirectional of top flies gear
（17）；
The unidirectionally winged gear（17）Including with the second rack（16）The external gear of engagement（18）, external gear（18）Medial surface is equipped with
Internal tooth（19）, external gear（18）Rotatable rotating wheel is inside installed（20）, rotating wheel（20）It is equipped with multiple first pawls
（21）, the first pawl（21）With internal tooth（19）Cooperation, rotating wheel（20）It is interior to be equipped with first rotating shaft（22）, first rotating shaft（22）Outer one
Body is connected with the second shaft（23）, the second shaft（23）On be arranged with rotating bar（24）, rotating bar（24）Both ends symmetrically one
It is connected with the Rotational Cylindrical of direction outward（25）, the second shaft（23）Upper movable sleeve is equipped with the first belt pulley（26）, the first belt
Wheel（26）Side open up there are two radian slot（27）, radian slot（27）With two Rotational Cylindricals（25）Cooperation, Rotational Cylindrical
（25）It can be in radian slot（27）Interior rotation, the first belt pulley（26）Two symmetrically arranged fixed columns of outer end face integrally connected
（28）, fixed column（28）And Rotational Cylindrical（25）Between be connected with second spring（29）, the first belt pulley（26）On top be equipped with
It is separately fixed at ring baffle（4）Second belt pulley of both sides（30）With third belt pulley（31）, the first belt pulley（26）, second
Belt pulley（30）, third belt pulley（31）Between through belt（32）Connection；
Second belt pulley（30）It is coaxially connected with third gear（33）, third gear（33）Top is engaged with third rack（34）,
Third rack（34）Contact is placed in the ring baffle of front end（4）.
2. a kind of multistage antidetonation bridging apparatus according to claim 1, which is characterized in that the physics earthquake-resistant bin（5）It is interior
Through two ring baffles（4）It is divided into level-one physics earthquake-resistant bin（35）, two level physics earthquake-resistant bin（36）, three-level physics earthquake-resistant bin
（37）, level-one physics earthquake-resistant bin（35）It is interior to be filled with carbon fibre material, two level physics earthquake-resistant bin（36）It is interior to be filled with aerating coagulation
Soil, three-level physics earthquake-resistant bin（37）It is interior to be filled with elastic rubber.
3. a kind of multistage antidetonation bridging apparatus according to claim 1, which is characterized in that first rack（14）Under
End is connected with third spring（38）, third spring（38）Lower section is connected with clump weight（39）.
4. a kind of multistage antidetonation bridging apparatus according to claim 1, which is characterized in that the third rack（34）Side
Wall is equipped with side tooth（40）, side tooth（40）It is engaged with the 4th gear（41）, the 4th gear（41）The other side be engaged with the 5th tooth
Wheel（42）, the 4th gear（41）With the 5th gear（42）It is coaxially connected with the first swing rod respectively（43）With the second swing rod（44）, the
One swing rod（43）With the second swing rod（44）End be connected with the 4th spring（45）.
5. a kind of multistage antidetonation bridging apparatus according to claim 1, which is characterized in that the third belt pulley（31）'s
Outside, which is combined with, is placed in two level earthquake-resistant bin（7）The second interior antishock device（46）, the second antishock device（46）Including being fixed on two
Grade earthquake-resistant bin（7）Annular baffle（4）On holder（47）, holder（47）Inside it is rotatably connected to buffer disc（48）, buffer disc
（48）Quadrangle offers notch（49）, notch（49）Place is mounted on telescoping cylinder（50）, telescoping cylinder（50）Inside it is mounted with
Five springs（51）, the 5th spring（51）It is connected with stretch rod（52）, it is placed in the stretch rod of left end（52）End is connected with U-shaped frame
（53）, U-shaped frame（53）It is rotatably connected to the second pawl（54）, with the stretch rod（52）The stretch rod of symmetric position（52）Connection ring
Shape baffle（4）, other two stretch rods（52）It is separately connected the stretch rod of another the second antishock device, third belt pulley（31）
Both ends be equipped with external tooth（55）, external tooth（55）It is integrally attached to third belt（31）On wheel, third belt pulley（31）External tooth
（55）With the second pawl（54）Cooperation.
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| CN201810137598.7A CN108360368B (en) | 2018-02-10 | 2018-02-10 | A kind of multistage antidetonation bridging apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810137598.7A CN108360368B (en) | 2018-02-10 | 2018-02-10 | A kind of multistage antidetonation bridging apparatus |
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| CN108360368A true CN108360368A (en) | 2018-08-03 |
| CN108360368B CN108360368B (en) | 2018-11-27 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110097980A (en) * | 2019-05-14 | 2019-08-06 | 哈尔滨工程大学 | The base isolation of double containment nuclear power station and three-dimensional shock-damping structure |
| CN112376411A (en) * | 2020-11-23 | 2021-02-19 | 常熟市宝德桥梁构件有限公司 | Bridge beam supports with hierarchical shock attenuation |
| CN112942608A (en) * | 2021-01-27 | 2021-06-11 | 四川省建筑科学研究院有限公司 | Building structure anti-seismic energy dissipater |
| CN115662257A (en) * | 2022-12-26 | 2023-01-31 | 中国科学院、水利部成都山地灾害与环境研究所 | Post-earthquake riverway evolution simulation test device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112376411A (en) * | 2020-11-23 | 2021-02-19 | 常熟市宝德桥梁构件有限公司 | Bridge beam supports with hierarchical shock attenuation |
| CN112376411B (en) * | 2020-11-23 | 2021-09-21 | 常熟市宝德桥梁构件有限公司 | Bridge beam supports with hierarchical shock-absorbing function |
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| CN115662257A (en) * | 2022-12-26 | 2023-01-31 | 中国科学院、水利部成都山地灾害与环境研究所 | Post-earthquake riverway evolution simulation test device |
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